Regent Seven Seas Cruises has announced its line-up of celebrities to be featured on the 2011 World Cruise aboard the 700-guest Seven Seas Voyager. The 162-night World Cruise departs Fort Lauderdale on Dec. 27 and will complete its global adventure on June 7 in London. Per-person pricing for the full voyage starts at $84,999. The featured guests will present lectures, classes and workshops.

Among the experts and guest lecturers are: Jack Hanna, May 14 to 24 -- Zookeeper and…